Practice Electron Configuration And The Periodic Table (4.3) - Atomic Structure

Practice: Electron Configuration and the Periodic Table

Lesson 4.3Atomic Structure

Practise this section

11 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
5 questions · about 3 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
What is the maximum number of electrons in the second shell?
Show hintHide hint
Use the formula 2n², where n is the shell number.
Question 2.
Define valence electrons.
Show hintHide hint
Think about the shell with the highest energy level.
3Question 3.
What does the Aufbau Principle state?
- Electrons fill orbitals in the order of increasing energy.
- Electrons can pair in orbitals before filling them singly.
- Electrons can occupy any orbital regardless of energy.
Show hintHide hint
Think about how you'd fill a container from the bottom up.
4Question 4.
True or False: The Pauli Exclusion Principle states that two electrons can occupy the same orbital if they have opposite spins.
- True
- False
Show hintHide hint
Consider the restrictions on electron pairing.
Question 5.
An unknown element has the electron configuration of 1s² 2s² 2p⁶ 3s² 3p³. Identify the element and discuss its reactivity.
Show hintHide hint
Check the group based on the number of valence electrons.
Question 6.
How does the electron configuration dictate the position of elements in the periodic table? Discuss the trends seen across a period and down a group.
Show hintHide hint
Consider how valence electrons influence reactions.

7 more questions in this section. Enroll free to practise them all.